APA

Sukumaran N. A. R. O., . (1971). Prathamika krishi tatwangal (m). : State Institute of Languages, TVPM.

Chicago

Sukumaran N Abdul Rahiman O, . 1971. Prathamika krishi tatwangal (m). : State Institute of Languages, TVPM.

Harvard

Sukumaran N. A. R. O., . (1971). Prathamika krishi tatwangal (m). : State Institute of Languages, TVPM.

MLA

Sukumaran N Abdul Rahiman O, . Prathamika krishi tatwangal (m). : State Institute of Languages, TVPM. 1971.